What engine?
Which O2sensor? You have more than one...

Thomas

Answered by exovcds
0 questions asked

What is the trouble code you pulled from the ECM.... if that's what made you think you have an O2 problem.

Thomas

Answered by exovcds
0 questions asked

hi my engine is sr 1600cc 8v rpm is up and doun in cold start

Response from samer600
2 questions asked

Have someone check the basics:

- stored trouble codes (warning light does not need to be on for a code to be stored)
- vacuum leaks
- throttle body (check for dirt build-up, clean and adapt (if applicable)
- temperature sensor (correct resistance when cold)
- fuel pressure
- fuel flow (demand from the engine) is different when the engine is warm... maybe not enough when cold.
etc.

Too many things that could be at fault that I / we can not check over the internet.

Thomas

Answered by exovcds
0 questions asked